Machine for trimming and cutting lumber



(No Model.)

P. M01),oNoUGH.

MACHINE-FOR TRIMMI'NG AND CUTTING' LUMBER.y

' 4 sheets-sheet 1.

my @xm-msg' N. PETERS. Pham-Limwgmpher. whingmm D. c.

(No Model.) Y 4 sheets-Sheen 2.

` MACHINE BOB TRIMMING AND CUTTING LUMBER. N0.259,'7 02. l Patented June 20, 1882..

N. PETERS. Phqwumogmpher. wmngmm o. z;

(xNo Model.) -4 Sheets-Sheet 3.

F, MCDONOUGH..

MACHINE FOR TRIMMIN'G-AND CUTTING LUMBER. No'.259,702. "Patented June 20,1882.

,Wi/12.65565: I jmvefnogf: y Wm f (No Moda.) 4 sheets-sheet 4. A

P. MODONOUGH.- MAGHINB POR TRIMMLNG AND CUTTING LUMBER. N0.259,7o2. i Patented June zo, 1882.

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j UNITED 4STATES PArnNT OFFICE.

FRANK MGDONCUGH, OF EAU CLAIRE, WISCONSIN.

vMACHlNE FOR T-RIMMING AND CUTTING LUMBE-R.

V SPECIFICATION forming part of Letters Patent vNo. 259,702, dated June 20, 1382,

Application filed September 10, 1881. (No model.)

'showing the friction-receiving disk or wheel 4and the friction-wheel and its operating devices; Fig. 6, a detail showing the friction wheel or disk audits attachment to its operatin -bar- Fi .7 adetail beinean underview showing the arrangement of the devices for lifting each saw independently. Fig. 8 is a section through the disk Z and a portion of the shaft I, which is journaled ecceutrically in the same.

This invention relates to machines for trinimingthe .ends of lumber and cuttingedges or lpieces of lumber into strips ofgiven length to be used for various purposes, and has for its objects `to construct a machine for the purposes designated which will do theV work effectually and in a reliable manner, and which can be easily and quickly changed to do the workof trimlning or the work ofcnttiug edges or pieces into strips ot' given length without changing of the machine as a whole or removal of any of the parts, and at the same time have the parts constituting the machine simple in construction, easily operated, and capable of being changed in respect to the feed to adapt it for the kind of work which is being done, and so arranged asA t0 carry and operate Va number 'of saws and have the saws capable of being all thrown into action simultaneouslyin cutting materialintogivenlengths, or have one saw or as many saws as may be desired thrown into action independently of the remaining saws and of each other without disconnecting the driving mechanism or any of the parts composing the machine as a whole, the arrangement being such that any one saw can be brought into action without having the ing-links; F, the crank-shaft; F', the arm or 6c lever for operating the crank-shaft; G, the locking-bar; H, the 1ockshaft; H', the lever or arm for operating the rock-shaft H; I, the friction-producingdisk; I', the revolving shaft,

carrying the disk I; I", the grooved collar on the disk I; J, the sliding bar; J'; the fork on the bar J, connecting the bar with the disk I; J", the upturned end of the bar J, through which the bar is adjusted; K, the friction-receiving disk; K', the shaft of the main driving-pulley; Ii", the main driving-pulley; L, the arm or lever for adjusting the friction-disk I; L', the shaft of the lever L; L", the crank at the end of the shaft L'; M, the beveledgear wheel; M', the shaft carrying the wheel M; M", the gear-wheel on the shaft M'; N, the secondary shaft; N', the gear-wheel on the shaft N; N", the gear-wheel forming an idler between the wheels M" N'; O C', the sprocketwheels; O", the feed-chains; P, the pulley 8o which Athe rock-shaft and the independent cranks and devices are connected or attached; V, the supports for the machine; a a a", the

parts composing the frames A; b, the collars or washers for holding the frames iu position on the shaft B; c, the pulley on the sauT journals or shafts; d, the link connecting a crankarm, D, with its saw-frame; d', the hook connecting the link d with the saw-frame; e, the journals or bearings for the crank-arms D D.; j', the crank on the shaft F; f', the foot-treadles on the arms or levers F' h, the cranks on the rock-shaft H; h', the links or hars connecting the cranks h with the saw-frames; i, the pin in the collar I"; t", the groove in the shaft I; j, the adjusting-screw; j', the head of the adiusting-serew; j", the bearing-plate for the head j'; k, the pulley on the shaft P, over which the belt from the pulley E" passes; Z, the link connecting the crankor arm L" with the disk on the shaft 1'; l', the disk on the shaft 1'; in, the bevel-pinion on the end ofthe shat't 1'; m', theheveled gear on the wheel M; a, the posts or uprigh ts supporting the shaft of the idler N", o, the teeth on the chains O; p, the beatings for the shaft l).

The frames A may each be made of wood or othersuitablo material, and may beconstrueted, as shown, ol' two side pieces united by a suitable center piece, or in anyother suitable manner, the forward end having an opening for the reception ot the pulley through which the saw is driven, which pulley is located on the saw shaft or arbor C, which is Ijournaled in any suitable manner in the forward end of the side pieces, and has attached to its end the saw C', ot'any ot' the usual and well-known forms of construction, the saw being attached to the arbor or shaft, as usual. These frames are mounted pivotally on a shaft, B, which shaft has its bearings or is supported in suitable standards, B', extending up from the crosspieces ot the frame, and the saw-frames A are held imposition on the shaft and prevented from coming in contact one with the other by suitable collars or washers, b, formed or located on the shat't B. The shaft B is stationary, and the frames 'turn or swing thereon as a pivot; and, in order to turn or swing the frames, one of the side pieces, e', as shown, is made longer than the other side piece, and extends beyond the shaft and forms an arm or lever by which the end carrying the saw is raised and lowered.

The outer end of the arm or extension ot' the side piece ai' has attached thereto the upper end of alink or rod, d, which end, as shown, is in the form of an elongated hook, and is attached to the arm or extension by means ofan eye or staple, d', so that the link d is free to slide, and at the same time it will not become disconnected but this attachmentean be made in some other suitable manner, and, in place of a round or other form ot' link or rod d having a hook thereon, a dat plate or bar provided with an elongated slot and attached by a bolt, rivet, or otherwise can be used.

The lower end of the link d is attached to or connected with a crank-arm, D, which arm stands at right angles, or nearly so, with a second crank-arm, D', both arms being formed or connected together in any suitable manner, and having journals or bearing portions which enter suitable bearings, e, secured to the under side of the bed or bottom u, so that the cranks D and D' are free to turn or swing on their pivots or journals. As shown, these cranks are formed from a single piece bent into shape to have a main portion or body, from which the cranks extend at right angles, or nearly so, to eacn other; but the main portion or body may be an independent piece, with the arms or cranks D D' secured thereto and extending out therefrom in the proper manner. One ot" these cranks D D' is to be provided for each sawframe, and to the end ot' the crank or arm D' is attached or connected the end of a link, E, the other end of which is attached in any suitable manner to the end of an arm, f, located on the shaft F, which shaft is mounted so as to turn freely in suitable bearin gs secured to the under side of the bed or bottom a, a shaft and an arm located thereon being provided for each crank D D', so that the respective cranks can be operated independently.

On each shaft F is located an arm or lever,

F', which extends out and above the bottom u, as shown, and has on its outer end a fo0tpieee,f', ou which the foot can be placed to operate the arm or lever F' and turn the shaft to raise or lower the frame connected there with through the crank D D' and the connecting-rod E.

Depending from each lever or arm F' is a hook, g, which is pivoted to the arm or lever at its upper end, so as to swing, and has its lower end provided with a notch or recess to receive the rod or bar G, which is attached in any suitable manner to the under face ot' the bottom u, and in such relation to the hooks g and the arms or levers that when any one ot' the arms or levers F' is depressed the hook can be made to engage with the rod and hold the arm or lever in its depressed position, by which means the saw, ivhich is operated through such arm or lever, will be held in a raised position and in position for use. l Some other means than the hooks g and rods G can be used for this purpose so long as such devices will allow the arms or levers to operate independently, and at the same time permit of l their being locked when so desired.

By mounting each saw in the end ot' a tilting or rocking frame, and having such end capable of being raised or lowered at the willof the operator and independently of the other frames carrying the relnaining saws, it will be seen that any one saw can be raised whenever desired,leaving the remaining sawsdepressed and out of action, or that two saws at a greater distance apart can be raised so as to bebrought in action, so that the ends ot' boards of various lengths can be trimmed by bringing the proper saw into use; or both ends can be trimmed simultaneously, it sodesired,by raising the saws nearest to each end ot the board. Each saw is raised independently through its foot-treadle F', crank-shaft F, connecting-rod E, double crank D D'7 and link or rod (l, connected to the arm or extension of the frame, and when the foot is removed from the treadle t-he several devices will return to their normal condition and the saw will drop below thebed or body ofthe machine, out of position for use.

Instead of using foot-treadles, as shown, the crank-shafts may each be operated by a handlever suitabl y arranged for the purpose so long as such devices will act to raise any one saw independent of the other saws. As manysaws IIO Vframes.

4are to be usedas desired. yAs shown, three lof the machine and other frames with saws thereon arranged adjacent to the end-frame -and saw at the end ofthe machine, where the operator, in the form of construction shown,

, .stands to operate the several devices.

Above the division board or bottom fu, and mounted in suitable bearings secured to thc upper face of such bottom, is located the shaft H, at the outer end of which is a hand-lever,

AH', and on the body of which, in line with each of the arms or extensions of the several saw-frames, is located an arm, IL, the outer end of which has pivoted or attached thereto the end ofa link, h', the other end of which is pivoted or attached in any suitable manner to the outer end of the arm or extension .of the saw-frame, with which the arm h coincides. These arms h are rigidly secured to the shaft EI, and by rocking this shaft through the arm or lever H it will be seen that all the frames carrying the saws will be simultaneously raised or lowered, accordingly as .the crank-shalt is rocked to depressthe arms h or return vthem to their normal position, so that the y operator can simultaneously and instantaneously elevate all of the sa-ws into working position. This elevation of theA saws is for the purpose of cutting edges or pieces into strips of equal length, vthe length depending upon the distance at which the saws are set apart, and -by this simultaneous raising of the saws it will be seen thatthe pieces or edges are all cut at one and the same time into strips of corresponding length, thereby savingtlic time and trouble which would be necessaryiin case each saw was independently brought into action to do its work and the material again receded and advanced for the next saw to do its work,

and so on, as by a single operation of the lever or arm H' all the saws can be brought into position'for work. Y

The friction Wheel or disk I is mounted upon a shaft, I', and arranged in such` relation to the Vfriction disk or WheelK, mounted upon the shaft orjournal K, as that the periphery of the wheel or disk I can be readily brought into contact or be in contact with theface of the Wheel or disk K. This wheel or disk I is adjustable upon the shaft-I', and is locked in position thereon so as to be adjustableA by means of a pin, t', which `passes, through the collar or hub I/ into .the groove t", extending the longitudinal length ot' the shaft; or it may kbe attached so as to be adjustable by means of a spline, or in someother suitablemanner.

The collar I is provided with a groove or recess, into which the forks or sides of the end i or fork J of the bar J enter, so as to connect the bar and wheel or disk together and notin` ter'fere with the revolution of theshaft I. The

barV is supported in suitable .bearings located on the frame-work of the machine, and is adjustable in such bearings, its `end J being provided with a screw-threaded opening to receive the shank of an adjusting-screw, j, the head j' of which islocated outside of the framework of the machine, and is adapted to be turned forward or back, as required, to ymove the bar J in or out to adjust the wheel or disk I on the shaft I in relation .to thewheel or vdisk K, and in order to prevent the headj froml wearing or injuring the frame a guardplate, j, as shown, is provided, against which the end of the headlbears in use.

The wheel or disk K is stationary, and-byv moving oradjusting the wheel or disk I to or from the center of the wheel or disk K the rotation of the. parts can be adjusted to give a slow or fast speed, as required, for the feed,

vthe adjustment of the wheel or disk I near the center of the wheel or disk K producing a slow rotation, and its adjustment near the periphl ery of the wheel or disk K producing afast rotation, thc intermediate adjustment producing aicorresponding rotation, accordingly as the wheel works or bears at a given point on the face of the wheel or disk K. Adjusting the wheel or disk I to bear on the side ofthe wheel ordiskKtoward thefrontofthemachine,where the operator stands, will produce a forward feed or a feed in the direction to carry the stuff IOO to the saws, and adjusting this wheel or disk I to bear on the opposite side of the center of the -wheel or disk K will produce a backward, feed, or a -feed which will carry the material away from the saws. By this arrangement of the frictioirdisks it will be seen that the feed can he changed to slow or fast,-as required, without any time or labor being spent in adjusting the devices, all that is necessary to be done being to change the position of the wheel or disk I forward or back in relation to Ythe center ofthe wheel'or disk K through the sliding bar J and adjusting-screw j; and it will also beseen that by means of these wheels lar-I" and projects through a suitable bearing located on a cross-piece of the frame-work, and to this projecting end is attached a small-disk, l', at one side of the center ofwhich is connected or attached oneend of .the linkf or rod l, the other end of which is connected or attached to an arm or crank, L", on a shaft, L', mounted in suitable bearings on the crosspiece S of the frame -work, on the other end of which shaft is an arm or lever, L, by means of which the shaft L' can be turned or rocked in its bearings and turn the disk l so as to draw the friction disk I against the frictionreceiving disk.

The disk l' is provided with a hub or boss, o', which is arranged in a bearing formed by means of a suitable strap or bar, r', so that the hub can turn therein. The journal end t of the shaft I' enters an opening, l", formed through the hub and disk eeeentrically to the axis of the same, so that by operating the rod lso as to turn the disk the shaft I' will be shifted toward or away from the disk K according to the direction in which the rod is moved, thus bringing the disk I in contact with disk K or moving it away from the same. In this way the pressure of the disk I upon diskK can be regulated, and hence the proper degree of frictional contact between the two insured. Any form of locking device can be employed for locking the rod l'".

On the opposite end of the shaft I' to the disk l' is a beveled gear pinion, m, which meshes with the cogs or leaves m' on the wheel M, which wheel is mounted upon the shaft M', which is supported in suitable bearings located on the cross-pieces S in such manner as to revolve freely. On this shaft M' is a gearwheel, M", the cogs or leaves of which mesh with the cogs or leaves of a wheel, N", suit ably `journaled in posts or uprights n, which wheel in turn meshes with a wheel, N', on a driving-shaft, N, which shaft has its bearings in the uprights or posts T. On this shaft N are located sprocket-wheels O, over which and corresponding sprocketwheel, O', suitably journaled in the front end of the upper crossbars, Q, of the framework, a chain, 0", passes, which chain is provided with teeth arranged at suitable distances apart, which engage with the lumber or strips and advance the same to the saws. The chains 0" are given a forward movement when the friction-disk I is engaged with the friction-disk K forward of its center, as shown in Fig. 1, such engagement of the disk revolving the shaft I', and, through the pinion m and wheel M, revolving the shaft M', and with it the wheelM", which wheel, meshing with the wheel N", revolves such wheel, and through the engagement thereof turns the wheel N' in a forward direction, and with it the shaft N, through which shaft the sprocketwheels are revolved, carrying the chain O" around with theln.

Other forms of mechanism than the wheels, shafts, and chains may be used for advancing the lumber or material to the saws so long as the devices constituting the carrying mechanism cau be operated through the action of the friction-disks, and other forms of devices than the friction-disks and mechanism operated therefrom to carry the lumber or material forward to the saws may be used in connection with the tilting saw-frames carrying the saws.

The driving-pulley K" is suitably mounted upon the shaft K', which carries the frictiondisk K, and over this pulley K" and asnialler pulley, k, located on the shaft P, a suitable driving-belt passes, through which the shaft P is rotated. This shaft P is mounted in suitable bearin gs located on the frame-work of the machine, and on which, at the proper point to be in line with the pulleys c, are located the pulleys P', one for each pulley c, over which pulley P' and its corresponding pulley c a suitable belt passes, by means of which the pulley c is rotated and the saw C' driven. There are as many pulleys P' as there are indepeudentsaw-carrying frames.

The frame-work maybe of any suitable form of construction which will receive and support the operating mechanism. As shown, it consists of side pieces secured to suitable uprights or posts, T, at the. frontand rear of the machine, and end pieces, R R, located in the same plane, or nearly so, with the side pieces and crosspieces Q, located on top or at thetop of thel uprights or posts, which cross-pieces form tracks or guideways for the travel ofthe chains O".

Theteedingdevices arelocated and supported in a suitable frame-work'fornied by-the crosspieees S, attached to the posts or uprights, with transverse cross-pieces which form supports for the shalt I' and the bar J. Other forms of construction for the main frame and for the intermediate frame for the feeding devices luay be used, such main frame and intermediate frame being of a proper construction to furnish the support for the several devices.

As shown,the main frame issupported upon the bottom u, to which bottom the operating shafts and cranks for the independent frame are attached,as before described, and this bottom u is supported in any suitable manner by legs or cross-pieces V from the floor or other supports.

A suitable cover is to be provided, as shown in Figs. 2 and 3, located on the top of the posts or uprights T above the operating mechanism, which cover is to have suitable slots for the passage of the chains and allow the teeth of the chains to project above the plane ot' the cover, and with other slots located in line with the saws C' for the passage of the saws when the frames are elevated above the plane of the cover in position to do the work.

In operation, power from an engine or other motive power is to be applied to the machine in any of the usual and well-known manners, imparting the required movements to the several devices to cause each to do their respective work. The chains O" carry the material forward onto the saws, and when it desired to simply trim the butts the operator places his foot upon the treadle I, which will raise the IOO IIO

frame of the saw which is to do the trimming, bringing'su'ch saw into positionto acthand do the work, and-if bothends are' to be Vtrimmed twol ofthe treadle'scan be brought'into use to bring twoof thesawsv-oneV at each end ofthe lumber-intoposition to act. When it is desired to saw the material into strips of uniform length the operator takes holdof the lever H', and through it and the crank-shaft H raises all of the saws into position for use,'so that as the material is carried by the chainsv onto the saws thesaws'will act 'to cut the material into strips ofthe requisite length. When it is de sired to cut strips of greater length than the space between the sawsthe operator can raise one of the saws into position through its foottreadle' or lever F' and lock it there, and raise another saw at the required distance from' the firstl saw through its foottrea-dle or lever F, and either lockit or hold 'itin position, holding the saws in position to do the cutting. By this form of arrangement it Will'be seen that the movements of the vsaws are wholly or entirely under the control of the operator, who clanraise them all simultaneously, or can raise any one independently Iof the others, or any two independently of the others, or can raise each alternate saw, or raise any number of saws, so as bring the saws raised intojpo'sition for use, while the remainder of the saws will remain below the top or cover and out of use, all

ofwhich movements are performed through the arm or lever HLand its connecting devices with the saw frames, or through the foottreadles F' and their connecting devices to the saw-frames.

Other means than the sliding bar J and the adjusting-screw j can be used for sliding the wheelor disk I back and forth on the shaft I', and this wheel or disk can be'made to engage with the wheel or disk K on theopposite side of its center to that shown in Fig. l and give the chains a forward movement, the pulley K" rotating properly for this purpose.

L ,The independent swinging frames A, each Y carrying a saw and having an arm or extension, incombination with the link or rod d, double crank D D', connecting the link E, and crank-shaft F, for raising any onel or more of the saws independently of the others, substantially as specified.

` 2. The independent swinging frames A, each carrying a saw and having an arm or eXtensio'n, in combination with j the link d, double crank D D',`link or rod E, arm f,shat't F, and foot-treadle F', for bringing, any one or more ofthe saws into position for use, substantially as specified. j

3. The independent swinging frames A, each carrying a saw and having an armor eXtension, in combination with thelink d, double crank D D', rod or link E,.crankshaft Ff, foottreadle F', hook g, and rod or bar G, for'raisingy any one or more of the saws into position for use and locking it into position, 'substantially as specilied. A A

4.. The independent frames A, each carrying a saw and having an arm or extension,in coinbination ,with the rock-shaft H, having arms h, links or bars h', and lever or arm H', for simultaneously raising all ofthe saws into position for use, substantially as speciiied.-

5. The. wheel or disk I, mounted upon the shaft I', journaled eccentrically in disk l', and the connecting-link l, in combination with the crank-shaft L" and L', and lever or arm L, and wheel or disk K, for producing the necessary friction al contact between the disks for feeding purposes,substantially as specified.

FRANK MCDONOUGH.

Witnesses:

A. R. BERGH, A. S. BosTwIcK. 

